50 lines
1.9 KiB
TypeScript
50 lines
1.9 KiB
TypeScript
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import { nanoid } from '@reduxjs/toolkit'
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import { TokenList } from '@uniswap/token-lists'
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import { useCallback } from 'react'
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import { useAppDispatch } from 'state/hooks'
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import { getNetworkLibrary } from '../connectors'
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import { fetchTokenList } from '../state/lists/actions'
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import getTokenList from '../utils/getTokenList'
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import resolveENSContentHash from '../utils/resolveENSContentHash'
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import { useActiveWeb3React } from './web3'
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export function useFetchListCallback(): (listUrl: string, sendDispatch?: boolean) => Promise<TokenList> {
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const { chainId, library } = useActiveWeb3React()
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const dispatch = useAppDispatch()
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const ensResolver = useCallback(
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async (ensName: string) => {
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if (!library || chainId !== 1) {
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const networkLibrary = getNetworkLibrary()
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const network = await networkLibrary.getNetwork()
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if (networkLibrary && network.chainId === 1) {
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return resolveENSContentHash(ensName, networkLibrary)
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}
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throw new Error('Could not construct mainnet ENS resolver')
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}
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return resolveENSContentHash(ensName, library)
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},
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[chainId, library]
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)
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// note: prevent dispatch if using for list search or unsupported list
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return useCallback(
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async (listUrl: string, sendDispatch = true) => {
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const requestId = nanoid()
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sendDispatch && dispatch(fetchTokenList.pending({ requestId, url: listUrl }))
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return getTokenList(listUrl, ensResolver)
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.then((tokenList) => {
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sendDispatch && dispatch(fetchTokenList.fulfilled({ url: listUrl, tokenList, requestId }))
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return tokenList
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})
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.catch((error) => {
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console.debug(`Failed to get list at url ${listUrl}`, error)
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sendDispatch && dispatch(fetchTokenList.rejected({ url: listUrl, requestId, errorMessage: error.message }))
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throw error
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})
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},
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[dispatch, ensResolver]
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)
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}
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